I have a Radeon HD 4870 X2, with an Intel Core 2 Quad CPU Q9550 @ 2.83GHz 2.83GHz. I have 4 gigs of RAM, and Windows Vista 64 bit. I'd like to get an XFX HD-477A-YDFC Radeon HD 4770 512MB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card, and run it in Crossfire. Right now I have an 800 Watt power supply. Should that be sufficient? Please, if you say no, really mean it. I think a power supply above 800 Watts runs at around a $100, so unless it's a real threat to messing up my system, please understand that I am sort of short on cash right now.
What are you crossfiring it to? it's not equiped to run with the 4870x2.
Power supply is plenty big.
I have almost no knowledge of computers, so I'm sorry, but, what do you mean by you first sentence? I suppose I would be trying to crossfire it to the card I mentioned. Or do you mean my motherboard? And dang, it wont run in crossfire with my current card? Oh well, at least when I find one that will, I shouldnt probably need a new power supply